(yield: about (4) fist-sized burgers)

Burger Patties
1.5 lbs ground beef (I prefer higher fat percentage, for juicier burgers)
1/2 red onion, grated
2 garlic cloves, grated
1 T grated ginger
1/2 C grated carrots
1/2 C shitake mushrooms, sliced in small pieces (or whatever kind of mushrooms you have handy)
3 T chopped green onions
3 T mirin  (rice wine)
2 T worcestershire sauce
2 T kecap manis (indonesian soy sauce)
3-4 T kikkoman soy sauce
1 t ground black pepper
a pinch or two of crushed red pepper
1 egg
2-3 handfuls of Panko breadcrumbs

Teriyaki Glaze
In a sauce pan, combine:
1 C kikkoman soy sauce
1 C mirin
1 heaping T brown sugar
1 T cornstarch
1/2C H20
1/2 C mushroom slices